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july 2010 doc id 17432 rev 1 1/18 18 stb28nm50n, stf28nm50n stp28nm50n, STW28NM50N n-channel 500 v, 0.135 ? , 21 a d 2 pak, to-220, to-220fp, to-247 mdmesh? ii power mosfet features 100% avalanche tested low input capacitance and gate charge low gate input resistance application switching applications description these devices are made using the second generation of mdmesh tm technology. this revolutionary power mosfet associates a new vertical structure to the company?s strip layout to yield one of the world?s lowest on-resistance and gate charge. it is therefore suitable for the most demanding high efficiency converters. figure 1. internal schematic diagram type v dss (@tjmax) r ds(on) max i d stb28nm50n 550 v < 0.158 ? 21 a stf28nm50n stp28nm50n STW28NM50N 1 2 3 1 2 3 to-220fp to-220 1 3 d2pak 1 2 3 to-247 table 1. device summary order codes marking package packaging stb28nm50n 28nm50n d2pak tape and reel stf28nm50n to-220fp tu b e stp28nm50n to-220 STW28NM50N to-247 www.st.com
contents stb28nm50n, stf28nm50n, stp28nm50n, STW28NM50N 2/18 doc id 17432 rev 1 contents 1 electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.1 electrical characteristics (curves) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3 test circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 4 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 5 packaging mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 6 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 stb28nm50n, stf28nm50n, stp28nm50n, STW28NM50N electrical ratings doc id 17432 rev 1 3/18 1 electrical ratings table 2. absolute maximum ratings symbol parameter value unit to-220 d2pak to-220fp to-247 v ds drain-source voltage (v gs = 0) 500 v v gs gate- source voltage 25 v i d drain current (continuous) at t c = 25 c 21 21 (1) 1. limited only by maximu m temperature allowed 21 a i d drain current (continuous) at t c = 100 c 13 13 (1) 13 a i dm (2) 2. pulse width limited by safe operating area drain current (pulsed) 84 84 (1) 84 a p tot total dissipation at t c = 25 c 90 25 150 w v iso insulation withstand voltage (rms) from all three leads to external heat sink (t=1 s;t c =25 c) 2500 v dv/dt (3) 3. i sd 21 a, di/dt 400 a/s, v dd = 80% v (br)dss peak diode recovery voltage slope 21 v/ns t stg storage temperature - 55 to 150 c t j max. operating junction temperature 150 c table 3. thermal data symbol parameter value unit to-220 d2pak to-247 to-220fp r thj-case thermal resistance junction-case max 1.39 0.83 5 c/w r thj-amb thermal resistance junction-ambient max 62.5 50 62.5 c/w r thj-pcb (1) 1. when mounted on 1inch2 fr-4 board, 2 oz cu thermal resistance junction-pcb max 30 c/w t l maximum lead temperature for soldering purpose 300 300 c electrical ratings stb28nm50n, stf2 8nm50n, stp28nm50n, STW28NM50N 4/18 doc id 17432 rev 1 table 4. avalanche characteristics symbol parameter value unit i ar avalanche current, repetitive or not-repetitive (pulse width limited by tj max) 8.5 a e as single pulse avalanche energy (starting tj = 25 c, i d = i ar , v dd = 50 v) 430 mj stb28nm50n, stf28nm50n, stp28nm50n, STW28NM50N electrical characteristics doc id 17432 rev 1 5/18 2 electrical characteristics (t case =25c unless otherwise specified) table 5. on/off states symbol parameter test conditions min. typ. max. unit v (br)dss drain-source breakdown voltage i d = 1 ma, v gs = 0 500 v i dss zero gate voltage drain current (v gs = 0) v ds = max rating v ds = max rating, @125 c 1 10 a a i gss gate-body leakage current (v ds = 0) v gs = 20 v 100 na v gs(th) gate threshold voltage v ds = v gs , i d = 250 a 2 3 4 v r ds(on) static drain-source on resistance v gs = 10 v, i d = 10.5 a 0.135 0.158 ? table 6. dynamic symbol parameter test conditions min. typ. max. unit c iss c oss c rss input capacitance output capacitance reverse transfer capacitance v ds = 25 v, f = 1 mhz, v gs = 0 - 1735 122 4.3 - pf pf pf c oss(tr) (1) 1. c oss(tr) is a constant capacitance value that gives the same charging time as c oss while v ds is rising from 0 to 80% v dss . equivalent output capacitance time related v gs = 0, v ds = 0 to 50 v - 122 - pf c oss(er) (2) 2. c oss(er) is a constant capacitance value that gives the same stored energy as c oss while v ds is rising from 0 to 80% v dss . equivalent output capacitance energy related -86 - q g q gs q gd total gate charge gate-source charge gate-drain charge v dd = 400 v, i d = 21 a, v gs = 10 v, (see figure 18 ) - 50 9.5 25 - nc nc nc r g gate input resistance f=1 mhz gate dc bias=0 test signal level=20 mv open drain -2.7 - ? electrical characteristics stb28nm50n, stf28nm50n, stp28nm50n, STW28NM50N 6/18 doc id 17432 rev 1 table 7. switching times symbol parameter test conditions min. typ. max. unit t d(on) t r t d(off) t f turn-on delay time rise time turn-off delay time fall time v dd = 250 v, i d = 10.5 a r g =4.7 ? v gs = 10 v (see figure 17 ) - 13.6 19 62 52 - ns ns ns ns table 8. source drain diode symbol parameter test conditions min. typ. max. unit i sd i sdm (1) 1. pulse width limited by safe operating area source-drain current source-drain current (pulsed) - 21 84 a a v sd (2) 2. pulsed: pulse duration = 300 s, duty cycle 1.5% forward on voltage i sd = 21 a, v gs = 0 - 1.5 v t rr q rr i rrm reverse recovery time reverse recovery charge reverse recovery current i sd = 21 a, di/dt = 100 a/s v dd = 400 v (see figure 22 ) - 326 5 30 ns c a t rr q rr i rrm reverse recovery time reverse recovery charge reverse recovery current i sd = 21 a, di/dt = 100 a/s v dd = 400 v, t j = 150 c (see figure 22 ) - 376 6.2 33.2 ns c a stb28nm50n, stf28nm50n, stp28nm50n, STW28NM50N electrical characteristics doc id 17432 rev 1 7/18 2.1 electrical characteristics (curves) figure 2. safe operating area for to-220, d2pak figure 3. thermal impedance for to-220, d2pak figure 4. safe operating area for to-220fp figure 5. thermal impedance for to-220fp figure 6. safe operating area for to-247 figure 7. thermal impedance for to-247 ) $ 6 $ 3 6 ! / p e r a t i o n i n t h i s a r e a i s , i m i t e d b y m a x 2 $ 3 o n ? s ? s m s m s 4 j ? # 4 c ? # 3 i n g l e p u l s e ! - v ) $ 6 $ 3 6 ! / p e r a t i o n i n t h i s a r e a i s , i m i t e d b y m a x 2 $ 3 o n ? s ? s m s m s 4 j ? # 4 c ? # 3 i n g l e p u l s e ! - v ) $ 6 $ 3 6 ! / p e r a t i o n i n t h i s a r e a i s , i m i t e d b y m a x 2 $ 3 o n ? s ? s m s m s 4 j ? # 4 c ? # 3 i n g l e p u l s e ! - v electrical characteristics stb28nm50n, stf28nm50n, stp28nm50n, STW28NM50N 8/18 doc id 17432 rev 1 figure 8. output characteristics figure 9. transfer characteristics figure 10. gate charge vs gate-source voltage figure 11. static drain-source on resistance figure 12. capacitance variations figure 13. output capacitance stored energy ) $ 6 $ 3 6 ! 6 6 6 ' 3 6 ! - v ) $ 6 ' 3 6 ! 6 $ 3 6 ! - v 6 ' 3 1 g n # 6 6 $ $ 6 ) $ ! 6 $ 3 6 ' 3 ! - v 2 $ 3 o n ) $ ! / h m 6 ' 3 6 ! - v # 6 $ 3 6 p & |